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A crate weighing 500.0 N is pulled along a horizontal sidewalk at constant speed by a rope that makes a 27.0
angle with the sidewalk. If a force of 210.0 N is applied to the rope, what is the coefficient of kinetic friction
between the crate and the sidewalk?
The force due to the atmosphere on one side of a door of area (2 m^2) is?Required to answer. Single choice.
(a) The equivalent capacitance is greater than any of the individual capacitances.
(b) The largest voltage appears across the smallest capacitance.
(c) The largest voltage appears across the largest capacitanvce
(d) The capacitor with the largest capacitance has the greatest charge .
(a) It becomes four times larger
(b) It becomes two times larger
(c) It is unchanged
(d) It becomes one-half as large.
What is gravitational potential energy of the 135 kg object suspended 25 m above the earths surface?
Convert:
1) 3.4 x 10⁴ BTU to Kj
2) 3472 BTU/IBM to kj/kg
3) 70ibm/ft to kg/me
4) 90°F to k
5) 120btu/hr ft² to j/sm²
A scalar of temperature T is given by, T= x2 + y2 +z2 . Calculate the gradient (∇T) of the scalar function at (1, 1, 2).
A Force Vector F is given by, F= 3x3 i +2y2 j +4z2k, . Calculate divF (∇.F) at (0, 1, 1).
Elaborate physical interpretation and significance of Gradient, Divergence & Curl and write down their respective formula.
A Velocity Vector V is given by, V= 5x3i +2y2 j +9z2 k, . Calculate curl of V (∇*V ) at (3, 0, 1).
